阿拉伯联合酋长国采购需求：船用五金、船锚、锚滚轮、船用系缆桩、遮阳篷配件、钓竿架

I'm reaching out to inquire about marine hinges we are looking to source for our upcoming projects. Specifically, we're interested in various sizes that fit within a compact range; size specifications I have in mind are around the 30x30, 40x40, and 50x50 dimensions. Could you please provide detailed information on the availability, minimum order quantities, pricing, and lead times for these hinges? Also, if there are any material options or finishes that you offer, I would like to hear about those as well. Your prompt response would be much appreciated as we plan to move quickly on this procurement.